CN211668853U

CN211668853U - Portable sampler

Info

Publication number: CN211668853U
Application number: CN202020040392.5U
Authority: CN
Inventors: 王晶; 呼文财; 徐超; 王欣
Original assignee: CNOOC Tianjin Oilfield Chemical Co Ltd
Current assignee: CNOOC Tianjin Oilfield Chemical Co Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-10-13
Anticipated expiration: 2030-01-09

Abstract

The utility model provides a portable sampler, wherein a sample inlet and a sample outlet are respectively arranged at two sides of a cavity body of the sampler, a sample inlet pipeline is communicated with the sample inlet, a sample inlet valve is arranged on the sample inlet pipeline, a sample outlet pipeline is communicated with the sample outlet, a sample outlet valve is arranged on the sample outlet pipeline, a sampling port is arranged in the middle of the top end of the cavity of the sampler, a sampling assembly is arranged on the sampling port, the sampling assembly comprises a glass test tube folded plate, a sealing gasket and a screw cap, a glass test tube folded plate is arranged on the inner wall of the sampler cavity at the sampling port, a fixed screw thread piece is integrally arranged on the outer wall of the sampler cavity at the sampling port, the outer wall of the fixed thread element is provided with external threads, the nut is connected with the fixed thread element through internal threads arranged on the inner wall of the nut, a sampling area is arranged at the top end of the screw cap, and a sealing gasket for sealing the cavity of the sampler is arranged in the fixed thread piece. Through airtight sampling and sealed detection, the accuracy of the detection result is improved.

Description

Portable sampler

Technical Field

The utility model relates to a gaseous and liquid sampling device technical field, more specifically says and relates to a portable sampler.

Background

The most common method for detecting the total sulfur and oxygen content in the water in the oilfield field is a rapid detection tube method. The method is widely applied to various domestic oil fields due to the characteristics of portability, rapidness and easy operation. The rapid detection tube method requires the detection sample to be strictly sealed in the detection process so as to ensure the accuracy of the detection result. However, no professional matched sampler exists at present, the tightness of the detection process cannot be guaranteed, and the detection result of total sulfur is low and the detection result of oxygen content is high.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes not enough among the prior art, do not have professional supporting sampler now, can not guarantee the leakproofness of testing process, lead to total sulphur testing result on the low side, oxygen content testing result on the high side, provide a portable sampler, through airtight sample, sealed detection, improved the accuracy of testing result.

The purpose of the utility model is realized by the following technical scheme.

A portable sampler comprises a sampler cavity, a sample inlet pipeline, a sample outlet pipeline and a sampling assembly,

a sample inlet and a sample outlet are respectively arranged on two sides of the sampler cavity, the sample inlet pipeline is communicated with the sample inlet, a sample valve is arranged on the sample inlet pipeline, the sample outlet pipeline is communicated with the sample outlet, a sample valve is arranged on the sample outlet pipeline, a sample port is arranged in the middle of the top end of the sampler cavity, the sample port is provided with a sample assembly, the sample assembly comprises a glass test tube folded plate, a sealing gasket and a screw cap, the inner wall of the sampler cavity at the sample port is provided with the glass test tube folded plate, a fixed thread piece is integrally arranged on the outer wall of the sampler cavity at the sample port, an external thread is arranged on the outer wall of the fixed thread piece, the screw cap is connected with the fixed thread piece through an internal thread arranged on the inner wall of the screw cap, and a sampling area is arranged on the top end of the screw cap, and the sealing gasket for sealing the sampler cavity is arranged in the fixed threaded part.

And scale marks for reading the sampling volume are marked on the outer wall of the cavity of the sampler.

The sampler cavity is made of transparent polypropylene (PP) materials, so that the total amount of samples in the sampler cavity can be observed conveniently.

The glass test tube folded plate is made of transparent polypropylene (PP), the distance between the glass test tube folded plates is 8-12mm, the length of the glass test tube folded plate is 12-18mm, and the thickness of the glass test tube folded plate is 1-3 mm; the sample introduction end of the portable rapid detection tube for oxygen content, sulfur content and the like is utilized to puncture the sealing gasket, the detection end (the detection end is a thinner end) of the detection tube head is arranged between the glass test tube folded plates (can be observed through the cavity of the sampler), and then the breakage of the detection end of the rapid detection tube is realized by means of the glass test tube folded plates, so that the sealed detection of the rapid detection tube on gas or liquid in the cavity of the sampler is realized.

The sealing gasket is made of rubber materials.

The utility model has the advantages that: the portable sampler can realize sealed sampling of liquid and gas by operating the sample introduction valve and the sample outlet valve; the sampling of the liquid sample with a fixed volume can be realized through the scale marks of the sampling cavity; the sealing detection of liquid and gas is realized through the sealing rubber pad, the accuracy of the detection result is improved, and the introduction of human errors is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view showing the structures of an oxygen measuring tube and a sulfur measuring tube;

in the figure: 1 is the sampler cavity, 2 is the sampling valve, 3 is out the appearance valve, 4 is glass test tube folded plate, 5 for sealed the pad, 6 is the nut, 7 is the sampling district, 8 is the scale mark, 9 is the inlet pipeline, 10 is out the appearance pipeline, 11 is fixed screw thread spare.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

The technical solution of the present invention is further explained by the following specific examples.

Example one

A portable sampler comprises a sampler cavity 1, a sample inlet pipeline 9, a sample outlet pipeline 10 and a sampling component,

a sample inlet and a sample outlet are respectively arranged on both sides of the sampler cavity 1, a sample inlet pipeline 9 is communicated with the sample inlet, a sample inlet valve 2 is arranged on the sample inlet pipeline 9, a sample outlet pipeline 10 is communicated with a sample outlet, a sample outlet valve 3 is arranged on the sample outlet pipeline 10, a sampling port is arranged in the middle of the top end of the sampler cavity 1, a sampling component is arranged on the sampling port, the sampling component comprises a glass test tube folded plate 4, a sealing gasket 5 and a screw cap 6, a glass test tube folded plate 4 is arranged on the inner wall of the sampler cavity 1 at the sampling port, a fixed screw thread piece 11 is integrally arranged on the outer wall of the sampler cavity 1 at the sampling port, the outer wall of the fixed screw thread piece 11 is provided with external screw threads, the screw cap 6 is connected with the fixed screw thread piece 11 through internal screw threads arranged on the inner wall of the screw cap 6, the top end of the screw cap 6 is provided with a sampling area 7, and a sealing gasket 5 for sealing the sampler cavity 1 is arranged in the fixed thread piece 11.

Example two

On the basis of the first embodiment, the outer wall of the sampler chamber 1 is marked with scale lines 8 for reading the sampling volume.

The sampler cavity 1 is made of transparent polypropylene (PP) materials, so that the total amount of samples in the sampler cavity 1 can be observed conveniently.

EXAMPLE III

On the basis of the second embodiment, the glass test tube folded plates 4 are made of transparent polypropylene (PP), the distance between the glass test tube folded plates 4 is 8-12mm, the length of each glass test tube folded plate 4 is 12-18mm, and the thickness of each glass test tube folded plate 4 is 1-3 mm; the sample introduction end of the portable rapid detection tube for oxygen content, sulfur content and the like is utilized to puncture the sealing gasket 5, the detection end (the detection end is a thinner end) of the detection tube head is arranged between the glass tube folded plate 4 (can be observed through the sampler cavity 1), and then the breakage of the detection end of the rapid detection tube is realized by means of the glass tube folded plate 4 so as to achieve the sealing detection of the rapid detection tube on gas or liquid in the sampler cavity 1.

The sealing gasket 5 is made of rubber materials.

The detection principle is as follows:

the oxygen detecting tube is a sealing structure, an oxygen detecting reagent is sealed in the oxygen detecting tube, when the oxygen detecting tube is applied, the detecting end of the oxygen detecting tube is inserted into the detected liquid, then the detecting end is broken on a glass test tube folded plate (the detecting end is specially processed and is easy to break), then the detected liquid is automatically sucked into the oxygen detecting tube by negative pressure, the oxygen in the detected liquid reacts with the reagent in the oxygen detecting tube, and then the color of the detected liquid is changed into blue. And finally, carrying out color comparison on the sample and a standard colorimetric tube, and reading detection data. If the whole detection process is not sealed, oxygen in the air can cause great interference to the detection result, so that the detection result is higher.

The sulfur detection tube is of a sealing structure, a sulfur detection reagent is sealed in the sulfur detection tube, the usage of the sulfur detection tube is similar to that of the oxygen detection tube, only a certain amount of color developing agent needs to be added into the detected liquid before the sulfur content in the detected liquid is detected, and after the color developing agent is added, if the detected liquid is not sealed, sulfur element loss is caused, so that the detection result is low. And (3) detecting the detected liquid added with the color developing agent according to the detection method of the oxygen detection tube, and finally comparing the detected liquid with a standard colorimetric tube to obtain detection data. (Portable sampler, accessible scale mark, carry out the volume sample introduction, then close into, go out the appearance valve, realize the sealed of sample, then according to the sample volume, with disposable syringe through the sealed pad with quantitative sulphur developer injection into the liquid that awaits measuring in the sampler, then detect sulfur content in the sealed sample with surveying sulphur detection tube to realize the leakproofness of whole testing process, guarantee the accuracy of testing result.)

When in use, firstly, the sealing gasket is placed in the fixed thread part, the sealing gasket is fixed in the fixed thread part by using the screw cap so as to achieve the purpose of sealing the sampling opening, then, the sample injection valve is opened to enable the sample to enter the cavity of the sampler, when the liquid level of the sample in the cavity of the sampler exceeds the glass test tube folded plate, the sample injection valve is closed so as to conveniently and quantitatively inject a sulfur-detecting color-developing agent into the sample in the cavity of the sampler (the method is the same as the above), the detection tube is used for puncturing the sealing gasket and is inserted between the glass test tube folded plates, the tip end of the detection tube is inserted below the liquid level of the sample, then, the tip end part of the detection tube is broken by using the glass test tube folded plate, the sample to be detected is sucked into the detection tube by depending on the negative pressure in the detection tube, so, can change sealed the pad through the nut, can also clean the sampler cavity through the sample connection.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A portable sampler, characterized in that: comprises a sampler cavity, a sample inlet pipeline, a sample outlet pipeline and a sampling component,

2. A portable sampler according to claim 1, in which: and scale marks for reading the sampling volume are marked on the outer wall of the cavity of the sampler.

3. A portable sampler according to claim 1, in which: the sampler cavity is made of transparent polypropylene (PP) materials, so that the total amount of samples in the sampler cavity can be observed conveniently.

4. A portable sampler according to claim 1, in which: the glass test tube folded plate is made of transparent polypropylene (PP), the distance between the glass test tube folded plates is 8-12mm, the length of the glass test tube folded plate is 12-18mm, and the thickness of the glass test tube folded plate is 1-3 mm.

5. A portable sampler according to claim 1, in which: the sealing gasket is made of rubber materials.